if he fell away from a shallow belief, that would mean he no longer had a shallow belief, so, dude, that makes no sense at all.
It makes perfect sense. In the case of these shallow ground hearers, they fall away when the time of testing comes which demonstrates that their faith was never firmly rooted or established in the first place or else they would have persevered and produced a crop of one size or another.
Some people may actually start out believing (at least to some degree) in Jesus (based on their own misconceptions and expectations as we see in John 8:41-59) then later find out that Jesus does not line up with their original expectations.
If you read in John 8:31-59, you will see that the Jews who were said to have "believed in Him" turned out to be:
slaves to sin, indifferent to the words of Jesus’, children of the devil, liars, accused Jesus of having a demon and were guilty of setting out to stone and kill the one they have professed to believe in.
*So we can see at best, these Jews believed in Him (based on their own misconceptions and expectations) of Jesus, yet upon gaining further knowledge about Jesus through His words, we see they did not truly "believe in His name/believe in Him" and become children of God (John 1:12; 3:18) but instead were children of the devil.
In John chapter 6, we see that many of Jesus' so called disciples complained and were offended (verses 60-61) about what Jesus said in verses 51-59. These are the very so called "disciples" who Jesus says
do not believe (John 6:64). Not unto salvation anyway. They also
walked with Him no more. So apparently, these alleged disciples of Jesus set out to be learners and followers of Him (based on their own misconceptions and expectations) of Jesus, then as soon as Jesus said something that was hard for them to understand and did not line up with their expectations, they left Him.
So to believe in Christ "unto salvation" goes beyond mere "mental assent" belief in the existence of Christ. It also goes beyond merely believing that the death, burial and resurrection of Christ "happened." Even the demons believe that. *We must believe from the heart (Romans 10:9) in the death, burial and resurrection of Christ by
TRUSTING in the death, burial and resurrection as the ALL-sufficient means of our salvation. (1 Corinthians 15:1-4; Romans 1:16)
You added so much there that the bible simply does not say. Please stop doing that an calling it fact.
What did I add? I clearly made my case FROM SCRIPTURE in post #762. It truly blows my mind how the crystal clear truth just continues to go right over your head.